National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fog/Mist

65°F

18°C

Humidity 81%
Wind Speed NA
Barometer 29.97 in (1014.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 9 Jan 10:56 am CST
Extended Forecast for

Lockhart TX

  • Today

    Today: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    Showers
    Likely

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 45. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.

    Low: 45 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 60. North wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 62. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62. Calm wind becoming southeast around 5 mph.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 64. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 64 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 45. North wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Mostly sunny, with a high near 60. North wind 15 to 20 mph, with gusts as high as 35 mph.
Saturday Night
Mostly cloudy, with a low around 33. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 62. North wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 36. Northeast wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 62. Calm wind becoming southeast around 5 mph.
Monday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 39. Calm wind.
Tuesday
Partly sunny, with a high near 64. Light southwest wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lockhart TX
 29.88°N 97.68°W (Elev. 525 ft)
Last Update:
10:32 am CST Jan 9, 2026
Forecast Valid:
11am CST Jan 9, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation